First find unit price
$38/4 = $9.50 per DVD
6 DVDs * total cost = answer
6 * 9.50 = 57
Solution: 6 DVDs cost $57
Answer:
x<-3 or x>2, 2<x<-3
Step-by-step explanation:
Subtract/add from each side then divide, if dividing by a negative reverse the sign.
Answer: 76 baseballs and 24 bats were ordered.
Step-by-step explanation:
Let x represent the number of baseballs that were ordered for the summer basketball camp.
Let y represent the number of bats that were ordered for the summer basketball camp.
Bakersfield parks and recreation department ordered a total of 100 baseballs and bats for the summer basketball camp. This means that
x + y = 100
Baseballs cost $4.50 each and bats cost $20 each. The total purchase was $822. This means that
4.5x + 20y = 822 - - - - - - - - - - -1
Substituting x = 100 - y into equation 1, it becomes
4.5(100 - y) + 20y = 822
450 - 4.5y + 20y = 822
- 4.5y + 20y = 822 - 450
15.5y = 372
y = 372/15.5
y = 24
x = 100 - y = 100 - 24
x = 76
Answer:
Step-by-step explanation:
first we need to find the slope bu using the slope formula and ur two sets of points
slope = (y2 - y1) / (x2 - x1)
(7,1)...x1 = 7 and y1 = 1
(-12,-6)....x2 = -12 and y2 = -6
now we sub
slope = (-6 - 1) / (-12 - 7) = -7/-19 = 7/19
now...in y = mx + b form, the slope will be in them position
y = mx + b
slope(m) = 7/19
use either of ur points.....(7,1)...x = 7 and y = 1
now we sub and find b, the y int
1 = 7/19(7) + b
1 = 49/19 + b
1 - 49/19 = b
19/19 - 49/19 = b
- 30/19 = b <======= ur y int
so ur equation is : y = 7/19x - 30/19
